If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-5d=-80
We move all terms to the left:
-5d-(-80)=0
We add all the numbers together, and all the variables
-5d+80=0
We move all terms containing d to the left, all other terms to the right
-5d=-80
d=-80/-5
d=+16
| 430/1500=x/75000 | | -2–5f=-6f–9 | | 18-5y=y=4 | | 3(4x+8)=-10 | | x+x/2-x/3=5 | | 69x+25x=350+25x | | q+-13=-19 | | -7y-9=-8y | | 13=9/r+8 | | 5y-2(-1+3y)=4 | | 17-(4n-2)=2(n+3) | | 13=9/r+8 | | g2= 3 | | 9.8=4p+3 | | m/3+5=21 | | 7^x=21 | | 3x/5+5/5-(5x/6-7/6)=(x/3-1/3) | | 12(x+68)=40 | | 7y–9=-8y | | (8/7)x+3=-1 | | 3x+2-2x = 2x+6 | | 5^2x-7=25 | | 3^3x-4=15 | | 365+25x=69x+25x | | 2x+-7x=15 | | v3=2 | | 0=-5(t^2-6t+4) | | 8v+10=35+3v | | 9=2x+1-6x | | v3= 2 | | 5a3+3=-3 | | -2x+7x=9x |